PC - Polycarbonat

Processing Guide: PC - Polycarbonat
Extruder: Single Screw (profile, sheet, film ) without vacuum , plain feeding section with vacuum or pressure-relieved grooved feeding section (by increased screw pitch and channel depth)
Twin Screw (compounding)
Screw Design: Barrier Screw, 25 - 30 L/DTwo mixing sections:
dispersive-mixing spiral-shear element, rhomboid distributive-mixing section

Compression Ratio: 2,25:1
Cylinder Temperatures: 270-300 C
518-572 F
Melt Temperature: 290-320 C
554-608 F
Pre-Drying: 2-4 hours at 100-120 C (212-248 F)
Calibration:
Miscellaneous: should not succeed 400 C
reduced wear by preheating of material at 120 C (248 F) or by heating of feeding section at 170 C (338 F)
Note: This is meant as a general guide. Please consult your material and machinery representative.